Question

A father told his son, "My age at the time of your birth was equal to your present age". If the father's present age is 40
years, what was the son's age 5 years ago?
​

Answer 1

Step-by-step explanation:

the age of son is x

as per to question

x=40-x

x+x=2x

2x=40

x=40÷2

x=20

age of son after 5 years

20-5=15

age of son will be 15